Apollo Astronauts May Have Brought a Piece of Ancient Earth Back From the Moon

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A re-analysis of lunar materials collected during the Apollo 14 mission has resulted in a rather astonishing conclusion: One of the rocks brought back appears to contain a small chunk of Earth dating back some 4 billion years. Incredibly, it’s now amongst the oldest terrestrial rocks known to exist.

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https://gizmodo.com/apollo-astronauts-may-have-brought-a-piece-of-ancient-e-1832055011

The Frequency of Asteroid Impacts Jumped Just Before the Dinosaur Age, New Research Suggests  

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By comparing the age of impact craters on the Moon to those on Earth, researchers say they have discovered a surge in the rate of asteroid strikes starting around 290 million years ago—a finding that runs contrary to scientific convention. And indeed, not everyone is convinced by the evidence.

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https://gizmodo.com/the-frequency-of-asteroid-impacts-increased-just-before-1831839017

The Fossils of the 21st Century

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In 100 million years, human civilization will have bit the dust. Perhaps a nuclear war scorched the planet, or a last-ditch bid to solve climate change backfired horribly. Or, more optimistically, we overcame the myriad challenges of the 21st century, took to the stars and evolved into new species on alien worlds.…

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https://earther.gizmodo.com/the-fossils-of-the-21st-century-1830693850

Geologists Joke About ‘Sea Monster’ After Mysterious 30-Minute Rumble Emanates from Waters Near Madagascar

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Between Mozambique and Madagascar lies the island of Mayotte. Since May 10, the French Geological Survey has been keeping an eye on a collection of earthquakes taking place just off the island’s eastern shores, which peaked with a magnitude 5.8 shake. This swarm was curious enough all by itself—and then, on November…

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https://gizmodo.com/geologists-joke-about-sea-monster-after-mysterious-30-m-1830738921

Remnants of Earth’s Oldest Dirt May Have Been Found in Greenland

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Earth’s oldest soil could be tucked away in an ancient rock outcrop in Greenland, according to new research. Dating back some 3.7 billion years, the suspected soil—exposed underneath a retreating ice cap—could potentially contain fossilized traces of primordial life.

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https://gizmodo.com/remnants-of-earths-oldest-dirt-may-have-been-found-in-g-1830342281